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A stadium with 75 rows has 10 seats the 1st row, 15 in the 2nd, 20 in the 3rd and so on.
How many seats are in the 75th row? How many seats are in the stadium?

Answers

Answer 1

Answer:

380

Step-by-step explanation:

This is an airthmatic sequence

we can use the following equation to find the nth term

a₁+(n-1)d

where the common difference (d) is 5

and the first term (a₁) is 10

and n is 75

we have

10+(75-1)*5

10+370

380


Related Questions

i need help will mark brainliest

Answers

Answer:

16.5

Step-by-step explanation:

a^2 + b^2 = c^2

Given AB= 20, BV=12, VA=14 and SR is a mid segment, find the given lengths

Answers

Given:

AB= 20, BV=12, VA=14 and SR is a mid segment.

To find:

The lengths of SR and AR.

Solution:

SR is a mid segment. So, SR is parallel to the non-included side BV and the length of SR is half of BV.

[tex]SR=\dfrac{1}{2}BV[/tex]

[tex]SR=\dfrac{1}{2}(12)[/tex]

[tex]SR=6[/tex]

SR is a mid segment. So, it divides the included sides in two equal parts. It means R is the midpoint of VA.

[tex]AR=\dfrac{1}{2}VA[/tex]

[tex]AR=\dfrac{1}{2}(14)[/tex]

[tex]AR=7[/tex]

Therefore, the measure of SR is 6 units and the measure of AR is 7 units.

Find the total surface area of the rectangular pyramid.

Answers

Answer:

I think it's 52 but I'm not sure

Step-by-step explanation:

The 6 stands for the side right? so I did the 6x it's four side. and the 7 stands for all the triangles right? so I did 7x the other four and added the answers together

sorry if it's wrong tho

Find the area. Simplify your answer.

Answers

Answer:

2x(x + 3)

2x^2 + 6x

Answer:  2x²+6x

Step-by-step explanation:

A = bh

A = 2x(x+3)

A = 2x²+6x

Please help me get the answers for this

Answers

Answer:

B.

Step-by-step explanation:

please help me out i suck at this

Answers

Answer:

I dont know I just want points

Step-by-step explanation:

Next frame
2. Use the information below to create a tree
diagram representing all the possibilities if you roll
the number cube and then spin the spinner.
Green
Blue
Blue
16
Green

Answers

Answer:

Step-by-step explanation:

BLUE

Evaluate the following piecewise function f(1)=

Answers

Answer:

I would guess it is 1F

Step-by-step explanation:

There is a 1 infront of the F so 1 times one, I think dont count me on that

A dealer sold 200 tennis racquets. Some were sold at $18 each and others were sold at $33 each. The total sales were 4,800. How many of each priced racquet was sold?
Explain your answer.

Answers

Let x = number that sell for $18 each
Then, 200 - x = number that sell for $33 each

18x + 33(200 - x) = 4800

18x + 6600 - 33x = 4800

-15x = -1800

x = 120

There were 120 racquets selling for $18 each and 80 racquets selling for $33 each.

A university has three table tennis scholarships each worth $1000. How many ways are there to award these after they've narrowed
the candidates to 6 ping pong players?
Blank 1:

Answers

Answer:

1. In the presence of restrictions; A player cannot win more than one scholarship;

The number of ways is 120 ways

2. In the absence of restrictions; A player can win more than 1:

The number of ways is 216 ways

Step-by-step explanation:

Here, to award the scholarships, the restrictions we might have is that a student cannot win more than 1 scholarship

Given this restriction;

The first scholarship has 6 possible contenders

The second has 5

The third has 4

So, the number of possible ways is;

6 * 5 * 4 = 120 ways

In the absence of no restrictions where a student can win any number of scholarships;

We have the 3 scholarships being awarded in 6 possible ways

So the total number of ways will be;

6 * 6 * 6 = 216 ways

What’s the Awnser my dudes and dudetts

Answers

What’s the question?

Answer: What do you want us to solve there is no photo and you didn't write any problem

Step-by-step explanation:

what is the value of the x- intercept of the following equation? 2x-6y=14

Answers

Answer:

x-3y-7=0

Step-by-step explanation:

2x-6y=14

2x-6y-7=0

x-3y-7=0


Jessica's shop sells 7 quarts of ice cream each day. How much is this in pints?

Answers

Answer:

14

Step-by-step explanation:

a pint is 1/2 of a quart so to find the number of pints multiply the number of quarts by two

What is the completely factored form of xy3 – x3y?

Answers

Answer: x y (y - x) (x + y)

-x y (x - y) (x + y)

x (y^3 - x^2 y)

Real roots:

x = 0

y = 0

Roots:

y = -x

y = x

hope this helps

Step-by-step explanation:

Answer

A

Step-by-step explanation:

Please help me ASAP please

Answers

Answer:

the bottom is kinda blurry

Graph the linear equation 7x+4y=-28

Answers

Answer:F

Step-by-step explanation:

Identify the slope and y-intercept of the line with the given equation.
SLOPE
y-intercept
5
y= 3x +4
6
y=-2x + 8

Answers

5. Slope = 3, Y-Intercept=4
6. Slope = -2, Y-Intercept=8

2) Select one of your sides.
Side: Nachos Price : 3.00
Your cost to make this side just became
cheaper. As a result, you are going to
decrease the price by $0.25. What is
the percent of change?
Answer:
I need the response quick please

Answers

Answer:

Step-by-step explanation:

nachos=3 =100%

1.5=50%

0.50=25%

0.25=12.5%

Onur is participating in a walkathon fundraiser. Two donors promised to donate money based on the total distance he walks. The money, A, in dollars, that he receives from the first donor given that he walks d kilometers is given by the formula A(d)=10d. The money, B, in dollars, that he receives from the second donor given that he walks d kilometers is given by the formula B(d)=2d+d^2.

Let T be the total money that Onur raises from those donors by walking d kilometers in the walkathon.

Write a formula for T(d), in terms of A(d) and B(d).
T(d)= ?

Write a formula for T(d), terms of d.
T(d)=?

Answers

Answer:

1. T(d) = A(d) + B(d)

2. T(d) = 12d + d²

Step-by-step explanation:

From the question given above, the following data were obtained:

A(d) = 10d

B(d) = 2d + d²

1. Determination of the formula of T(d) in terms of A(d) and B(d).

T(d) is the total money obtained. Thus,

T(d) = A(d) + B(d)

2. Determination of the formula of T(d) in terms of d.

A(d) = 10d

B(d) = 2d + d²

T(d) =?

T(d) = A(d) + B(d)

T(d) = 10d + 2d + d²

T(d) = 12d + d²

What is 430,000 in scientific notation.

Answers

Answer:

four hundred thirty thousand

Step-by-step explanation:

Your welcome<3

Answer:

4.3 × 10 to the 5th power

Step-by-step explanation:

LAST QUESTION OF BRAINLY POINT CHALLENGE:

Answers

Answer:
216in2

step-by-step
cause i said so

Which equations does the number 7 make true? Select all that apply. 20/21 × _____ = 3/20 13/28 × _____ = 5/2 11/14 × _____ = 11/2 3/35 × _____ = 3/5 5/7 × _____ = 5

Answers

Answer: 11/4 x 7 = 11/2 ; 3/35 x 7 = 3/5 ; 5/7 x 7 = 5. So, the last three you listed work with 7 in the blank.

The equations that the number 7 makes true will be 11/14 × 7 = 11/2, 3/35 × 7 = 3/5, and 5/7 × 7= 5. Then the correct options are C, D, and E.

What is an equivalent expression?

The equivalent is the expression that is in different forms but is equal to the same value.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The equations do the number 7 make true will be given as,

Let's check all the options. Then we have

20/21 × 7 = 3/20

20 / 3 ≠ 3 / 20

13/28 × 7 = 5/2

13 / 4 ≠ 5 / 2

11/14 × 7 = 11/2

11 / 2 = 11 / 2

3/35 × 7 = 3/5

3 / 5 = 3 / 5

5/7 × 7= 5

5 = 5

The equations that the number 7 makes true will be 11/14 × 7 = 11/2, 3/35 × 7 = 3/5, and 5/7 × 7= 5. Then the correct options are C, D, and E.

More about the equivalent link is given below.

https://brainly.com/question/889935

#SPJ5

WILL MARK BRAINLEST
The mean of 16 items was found to be 30. On rechecking, it was found that two items were wrongly taken as 22 and 18 instead of 32 and 28 respectively. Find the correct mean. Round to the nearest Hundredth.

Answers

Answer: The answer is 31.25 because The mean of 16 items was found to be 30. So once you checked, it was that 2 items were wrongly taken as 22 and 18 instead of 32 and 28 respectively. Sum = mean  no of items = 30  16 = 480

(32 +28) – (22 + 18) = 20

Correct mean =  = 31.25

Step-by-step explanation: My apologize that I took long I hope this helps.

If f(x) = 4x – 11, what is the value of f(5)?
o 4
0 20x – 55
o
34
9

Answers

9

f(5) = 4 • 5 - 11

f(5) = 20 - 11

f(5) = 9

What is the area of the triangle?
12 mi
13 m
Som
O 180 m
225 m2
360 mº
O 450 m

Answers

Answer:

30 x 12 divided by 2 is 180

Step-by-step explanation:

180 is your answer

Formula of a triangle is:

BH x 1/2

Answer:

C  

Step-by-step explanation:

I think

Which of the following lines is not parallel to the graph of y=3x+9?
A. 3x-y1- 10
b. 3-31 - 11
c. 3y-x=10
d. 67-y-10

Answers

The answer is b .........

Which of these best describes pi


The ratio of the radius of a circle to its diameter


The ratio of the circumference of a circle to its diameter


The radius of a circle times 3.14


The square root of the area of a circle

Answers

The ratio of the circumference of a circle yo it’s diameter

If the perimeter of square 3 is 36 units and the perimeter of square 2 is 48 units, what is the area of square 1?

Answers

Answer:

225 [tex]units^{2}\\[/tex]

Step-by-step explanation:

find the value of a2+b2 and a4+b4 when a+b=5 and ab =4

Answers

Answer:

a² + b² = 17

a^4 + b^4 = 257

Step-by-step explanation:

The only solutions for a+b=5 and ab =4 is:

4 and 1 but we don't know which is which. In this case it doesn't matter though.

a² + b² = 16 + 1 = 17

a^4 + b^4 = 256 + 1 = 257

the sum of two numbers is two. three times the first plus twice the second is five.

Answers

Answer:

101

Step-by-step explanation:

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